scholarly journals The Effect of Everyday Stressors and the Perceived Stress Reactivity Scale on Variability in Sympathetic Arousal

2021 ◽  
Vol 5 (Supplement_1) ◽  
pp. 774-775
Author(s):  
MacKenzie Hughes ◽  
Christopher Hertzog ◽  
Shevaun Neupert ◽  
Scott Moffat
Keyword(s):  
Perceived Stress ◽  
Stress Reactivity ◽  
Amylase Activity ◽  
Daily Basis ◽  
Alpha Amylase ◽  
Naturally Occurring ◽  
Age Related ◽  
Ecological Momentary ◽  
Study Participants ◽  
The Relationship

Abstract This ecological momentary assessment study examined the effect of naturally occurring stressors and perceived stress reactivity on alpha-amylase, a proxy of sympathetic nervous system arousal. There are age-related changes in physiological systems sensitive to stress, so the sample included 174 adults ages 20-78 (M=48.65, SD=19.28). At the beginning of the study, participants completed the Perceived Stress Reactivity Scale (PSRS; Schulz et al., 2005). For 10 consecutive days, participants were prompted five times per day to report exposure to stressors. During the same 10-day period, participants provided seven saliva samples per day, assayed for alpha-amylase. Multilevel modeling was used to examine daily and momentary associations between stressors, the PSRS, and alpha-amylase activity. On a daily basis, stressors did not predict changes in the diurnal alpha-amylase pattern, but higher perceived stress reactivity predicted steeper diurnal slopes and lower total daily output. A significant cross-level interaction emerged showing people higher in perceived stress reactivity had steeper awakening responses on days they experienced more stressors than usual. On a momentary basis, alpha-amylase levels were higher on occasions when participants reported stressors. In addition, higher levels of perceived stress reactivity predicted lower overall alpha-amylase levels. Findings suggest that 1) stressors are associated with elevations in momentary but not daily aggregate levels of alpha-amylase, and 2) the PSRS has prospective validity as a predictor of stress-related fluctuations in diurnal alpha-amylase patterns. Age was not a significant moderator of the relationship between stressors and alpha-amylase, potentially suggesting the effect of stressors on alpha-amylase activity is age invariant.

scholarly journals Daily Stressors and Physiological Reactivity: The Role of Perceived Stress, Stress Reactivity, Neuroticism, and Age

2020 ◽  
Vol 4 (Supplement_1) ◽  
pp. 386-387
Author(s):  
MacKenzie Hughes ◽  
Christopher Hertzog
Keyword(s):  
Perceived Stress ◽  
Stress Reactivity ◽  
Physiological Stress ◽  
Stress Hormones ◽  
Stressful Events ◽  
Alpha Amylase ◽  
Physiological Reactivity ◽  
Subjective Stress ◽  
The Individual ◽  
Ecological Momentary

Abstract Exposure to stressful events is an inevitable aspect of everyday life, such as encountering work deadlines or interpersonal conflicts. The body’s physiological stress systems can become activated when exposed to stressors, resulting in increases in cortisol from the hypothalamic-pituitary-adrenal axis and/or increases in the alpha-amylase enzyme via the sympathetic-adrenal medullary system. We predicted physiological reactivity measured by salivary assay in an ecological momentary assessment (EMA) design, using The Perceived Stress Scale (PSS; Cohen, 1988), Perceived Stress Reactivity Scale (PSRS; Schulz, Jansen, & Schlotz, 2005), neuroticism, (Big Five Inventory; John, Donahue, & Kentle, 1991), and age. Adult participants (N=163) ages 20–80 years old (M=51.8 years) completed the individual differences measures and then provided seven saliva samples per day for 10 consecutive days while also completing five stress-related surveys per day via random-prompted EMA (Scott, Sliwinski, & Blanchard-Fields, 2013). Mean aggregate alpha-amylase correlated with the PSRS (r = -.20, p < .05) but not with the PSS or with neuroticism, suggesting alpha-amylase may be a more sensitive measure of subjective stress reactivity. In contrast, mean cortisol levels were not correlated with any of those measures. Age correlated with subjective stress (r = -.23, p < .05) and stress reactivity (r = -.20, p < .05) but not with hormone levels. Multilevel modeling will be used to evaluate within-person and between-person variation in stress hormones and EMA measures of daily stress in relation to the PSS, the PSRS, neuroticism, and age.

scholarly journals Vigor and alpha-amylase activity in common bean seeds under salt stress conditions

2021 ◽  
Vol 42 (6supl2) ◽  
pp. 3633-3650
Author(s):  
Matheus Santin Padilha ◽  
◽  
Cileide Maria Medeiros Coelho ◽  
Natalia Carolina Moraes Ehrhardt-Brocardo ◽  
◽  
...  
Keyword(s):  
Salt Stress ◽  
Common Bean ◽  
Stress Condition ◽  
Amylase Activity ◽  
Reduction Rate ◽  
Stress Conditions ◽  
Alpha Amylase ◽  
Reserve Mobilization ◽  
Relationship Of ◽  
The Relationship

Seeds with high vigor have greater capacity for hydrolysis and mobilization of stored reserves, which results in the formation of vigorous seedlings, and this behavior is observed under abiotic stress conditions. This study proposes to investigate the relationship of the enzyme alpha-amylase in lots of common-bean seeds with contrasting vigor, when subjected to the absence and presence of salt stress, aiming to identify the relationship of this enzyme with the vigor of the seed lot under these conditions. Seven common-bean cultivars were used. Physiological quality was determined by germination, vigor index and seedling length. The mobilization of reserves was evaluated under absence and presence of salt stress simulated with a NaCl solution with a concentration of 50 mmol L-1. The analyzed variables regarding reserve mobilization were reserve reduction, reserve reduction rate, seedling dry weight, reserve mobilization rate, starch, starch reduction rate and alpha-amylase activity. Results showed that the stress condition negatively affected all the evaluated variables; however, the cultivars classified as having greater vigor showed better physiological performance under stress. Salt stress in common-bean seeds affects seedling performance and reduces alpha-amylase activity during germination, and high-vigor seed lots exhibited higher enzyme activity in the no-stress condition.

scholarly journals Exploring the Time Trend of Stress Levels While Using the Crowdsensing Mobile Health Platform, TrackYourStress, and the Influence of Perceived Stress Reactivity: Ecological Momentary Assessment Pilot Study (Preprint)

2019 ◽  
Author(s):  
Rüdiger Pryss ◽  
Dennis John ◽  
Winfried Schlee ◽  
Wolff Schlotz ◽  
Johannes Schobel ◽  
...  
Keyword(s):  
Pilot Study ◽  
Perceived Stress ◽  
Mobile Health ◽  
Time Trend ◽  
Multilevel Models ◽  
Stress Reactivity ◽  
Stress Scale ◽  
Stress Levels ◽  
Ecological Momentary ◽  
Momentary Assessment

BACKGROUND The mobile phone app, TrackYourStress (TYS), is a new crowdsensing mobile health platform for ecological momentary assessments of perceived stress levels. OBJECTIVE In this pilot study, we aimed to investigate the time trend of stress levels while using TYS for the entire population being studied and whether the individuals’ perceived stress reactivity moderates stress level changes while using TYS. METHODS Using TYS, stress levels were measured repeatedly with the 4-item version of the Perceived Stress Scale (PSS-4), and perceived stress reactivity was measured once with the Perceived Stress Reactivity Scale (PSRS). A total of 78 nonclinical participants, who provided 1 PSRS assessment and at least 4 repeated PSS-4 measurements, were included in this pilot study. Linear multilevel models were used to analyze the time trend of stress levels and interactions with perceived stress reactivity. RESULTS Across the whole sample, stress levels did not change while using TYS (<italic>P</italic>=.83). Except for one subscale of the PSRS, interindividual differences in perceived stress reactivity did not influence the trajectories of stress levels. However, participants with higher scores on the PSRS subscale reactivity to failure showed a stronger increase of stress levels while using TYS than participants with lower scores (<italic>P</italic>=.04). CONCLUSIONS TYS tracks the stress levels in daily life, and most of the results showed that stress levels do not change while using TYS. Controlled trials are necessary to evaluate whether it is specifically TYS or any other influence that worsens the stress levels of participants with higher reactivity to failure.

scholarly journals The relationship between the level of salivary alpha amylase activity and pain severity in patients with symptomatic irreversible pulpitis

2013 ◽  
Vol 38 (3) ◽  
pp. 141 ◽  
Author(s):  
Fatemeh Ahmadi-Motamayel ◽  
Shahriar Shahriari ◽  
Mohammad Taghi Goodarzi ◽  
Abbas Moghimbeigi ◽  
Mina Jazaeri ◽  
...  
Keyword(s):  
Amylase Activity ◽  
Pain Severity ◽  
Alpha Amylase ◽  
Salivary Alpha Amylase ◽  
The Relationship ◽  
Irreversible Pulpitis

scholarly journals Older Adults' Satisfaction and Compliance of Smartwatches Providing Ecological Momentary

2020 ◽  
Vol 4 (Supplement_1) ◽  
pp. 799-799
Author(s):  
Charlotte Laborde ◽  
Erta Cenko ◽  
Mamoun Mardini ◽  
Sanjay Ranka ◽  
Parisa Rashidi ◽  
...  
Keyword(s):  
Older Adults ◽  
Research Study ◽  
Compliance Rate ◽  
Daily Basis ◽  
Battery Life ◽  
Online Assessment ◽  
One Year ◽  
Ecological Momentary ◽  
Study Participants ◽  
Random Times

Abstract The objective of this study was to evaluate satisfaction, usability and compliance using the Real-Time, Online Assessment and Mobility Monitor (ROAMM) application designed for smartwatches. Twenty-eight older adults with knee osteoarthritis (66-88 years old) wore a Samsung Gear S3 smartwatch with ROAMM. While wearing the watch for 13.16 (±2.94) days, participants gave ecological momentary assessments (EMA) of pain intensity, mood and fatigue at random times in the morning, afternoon and evening. EMA compliance rate was 82.5%. Satisfaction ratings were high with 73% reporting being satisfied with the function, 78% reported being satisfied with the comfort and 73% reported as likely to use ROAMM on a daily basis for a one-year research study. Participants reported to reduce watch size and weight, style and increase battery life. Older adults were compliant to ecological assessment of their symptoms and reported positive usability and satisfaction of wearing a smartwatch and ROAMM app.

Perceived stress, physiological stress reactivity, and exit exam performance in a prelicensure Bachelor of Science nursing program

2020 ◽  
Vol 17 (1) ◽  
Author(s):  
Lisa Brodersen ◽  
Rebecca Lorenz
Keyword(s):  
Nursing Students ◽  
Perceived Stress ◽  
Stress Reactivity ◽  
Physiological Stress ◽  
Nursing Program ◽  
Alpha Amylase ◽  
Exam Performance ◽  
Exit Exam ◽  
High Stakes ◽  
Salivary Alpha Amylase

AbstractObjectivesHigh-stakes exams are a source of chronic stress that may adversely affect nursing students’ thinking, behavior, and overall health. The purpose of this study was to explore the relationships of perceived stress, physiological stress reactivity, and exit exam performance.MethodsA within-subjects design allowed measurement of perceived stress, salivary cortisol, and salivary alpha amylase in pre-licensure nursing students under two different conditions: a high-stakes exit exam and a low-stakes homework assignment.ResultsPerceived stress and salivary alpha amylase were significantly higher after the high-stakes exam compared to the homework condition. Perceived stress after the exam was correlated with lower exam score.ConclusionStudy findings suggest that in response to a high-stakes exam, prelicensure nursing students experience high levels of perceived stress coupled with sympathetic activation but not activation of the hypothalamic-pituitary adrenal axis.

scholarly journals Stress reactivity elicits a tissue-specific reduction in telomere length in ageing zebrafish (Danio rerio)

2020 ◽  
Author(s):  
James R. Evans ◽  
Jose V. Torres-Pérez ◽  
Maria Elena Miletto Petrazzini ◽  
Riva Riley ◽  
Caroline H. Brennan
Keyword(s):  
Telomere Length ◽  
Stress Reactivity ◽  
Quantitative Polymerase Chain Reaction ◽  
Heart Tissue ◽  
Telomere Shortening ◽  
Tissue Specific ◽  
Age Related ◽  
Specific Manner ◽  
Polymerase Chain ◽  
The Relationship

ABSTRACTTelomere length reflects cellular ageing. Increased telomere shortening in leukocytes is associated with a range of neurodegenerative and cardiovascular diseases, the onset and progression of which may be mediated by behavioural traits such as anxiety and stress reactivity. However, the effects of the hypothalamus-pituitary-adrenal axis stress response are shown to be tissue specific. As such, leukocyte telomere length may not give an accurate measure of the relationship between stress-reactivity and telomere length in disease relevant tissues. To test the hypothesis that stress-reactivity contributes to age-related telomere shortening in a tissue specific manner, we examined the correlation between telomere length in heart and brain tissue and stress-reactivity in a population of young (6-9 month) and ageing (18 month) zebrafish. Stress-reactivity was assessed by tank diving, a zebrafish version of the rodent open-field test, and through gene expression. Telomere length was assessed using quantitative polymerase chain reaction. We show that ageing zebrafish have shorter telomeres in both heart and brain. Telomere length is inversely related to stress-reactivity in heart but not brain of ageing individuals. These data support the hypotheses that an anxious predisposition contributes to telomere shortening in heart tissue, and by extension age-related heart disease, and that stress-reactivity contributes to age-related telomere shortening in a tissue-specific manner.

scholarly journals Exploring the Time Trend of Stress Levels While Using the Crowdsensing Mobile Health Platform, TrackYourStress, and the Influence of Perceived Stress Reactivity: Ecological Momentary Assessment Pilot Study

10.2196/13978 ◽  
2019 ◽  
Vol 7 (10) ◽  
pp. e13978 ◽  
Author(s):  
Rüdiger Pryss ◽  
Dennis John ◽  
Winfried Schlee ◽  
Wolff Schlotz ◽  
Johannes Schobel ◽  
...  
Keyword(s):  
Pilot Study ◽  
Perceived Stress ◽  
Mobile Health ◽  
Time Trend ◽  
Multilevel Models ◽  
Stress Reactivity ◽  
Stress Scale ◽  
Stress Levels ◽  
Ecological Momentary ◽  
Momentary Assessment

Background The mobile phone app, TrackYourStress (TYS), is a new crowdsensing mobile health platform for ecological momentary assessments of perceived stress levels. Objective In this pilot study, we aimed to investigate the time trend of stress levels while using TYS for the entire population being studied and whether the individuals’ perceived stress reactivity moderates stress level changes while using TYS. Methods Using TYS, stress levels were measured repeatedly with the 4-item version of the Perceived Stress Scale (PSS-4), and perceived stress reactivity was measured once with the Perceived Stress Reactivity Scale (PSRS). A total of 78 nonclinical participants, who provided 1 PSRS assessment and at least 4 repeated PSS-4 measurements, were included in this pilot study. Linear multilevel models were used to analyze the time trend of stress levels and interactions with perceived stress reactivity. Results Across the whole sample, stress levels did not change while using TYS (P=.83). Except for one subscale of the PSRS, interindividual differences in perceived stress reactivity did not influence the trajectories of stress levels. However, participants with higher scores on the PSRS subscale reactivity to failure showed a stronger increase of stress levels while using TYS than participants with lower scores (P=.04). Conclusions TYS tracks the stress levels in daily life, and most of the results showed that stress levels do not change while using TYS. Controlled trials are necessary to evaluate whether it is specifically TYS or any other influence that worsens the stress levels of participants with higher reactivity to failure.

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